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If a box of 35 syringes costs $560.00, what is the cost for two syringes?
- A. $8.00
- B. $16.00
- C. $15.00
- D. $32.00
Correct Answer: D
Rationale: To determine the cost for two syringes, you first need to calculate the cost per syringe by dividing the total cost of the box by the total number of syringes in the box: $560.00 · 35 syringes = $16.00 per syringe. Therefore, each syringe costs $16.00. To find the cost of two syringes, you multiply the cost per syringe by 2: $16.00 x 2 = $32.00. Hence, the correct answer is option D, which is $32.00 for two syringes.
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What is an appropriate unit of measure to express the length of a dollar bill?
- A. Meters
- B. Decimeters
- C. Kilometers
- D. Centimeters
Correct Answer: D
Rationale: Dollar bills are relatively small items, so their length is commonly measured in centimeters. Meters, decimeters, and kilometers are much larger units of length, making centimeters the most suitable unit to accurately express the length of a dollar bill. Centimeters provide a more precise and practical measurement for the size of a dollar bill compared to the other options, which are more suitable for larger distances or objects.
A sweater that normally sells for $87 is marked 25% off. Which of the following estimates the sale price of the sweater?
- A. $36
- B. $65
- C. $51
- D. $22
Correct Answer: B
Rationale: To calculate the sale price after a 25% discount, you need to find 25% of the original price and subtract it from the original price. 25% of $87 is $21.75 ($87 x 0.25 = $21.75). Subtracting this from the original price gives you $87 - $21.75 = $65, which is the estimated sale price of the sweater.
Which of the following weights is equivalent to 3.193 kilograms?
- A. 3,193 grams
- B. 3,193,000 grams
- C. 319.3 grams
- D. 0.003193 grams
Correct Answer: C
Rationale: To convert kilograms to grams, you multiply by 1000. Therefore, 3.193 kilograms is equivalent to 319.3 grams. When converting from kilograms to grams, the decimal point is moved three places to the right to get the equivalent weight in grams. In this case, 3.193 kilograms, when converted to grams, becomes 319.3 grams.
Solve the equation 4(X-5)=8 for x. Which of the following is the correct answer?
- A. 7
- B. 03-Apr
- C. 3 1/4
- D. -3
Correct Answer: A
Rationale: To solve the equation 4(X-5)=8 for x, first distribute the 4: 4X - 20 = 8. Next, add 20 to both sides to isolate X: 4X = 28. Finally, divide by 4 to solve for X: X = 7. Therefore, the correct answer is A as X equals 7.
Simplify the expression [2(3 + 5 × 3)] / (12 ÷ 2)
- A. 12
- B. 1
- C. 8
- D. 6
Correct Answer: D
Rationale: To simplify: Calculate 5 × 3 = 15; then 3 + 15 = 18. So, 2 × 18 = 36. Then, 12 ÷ 2 = 6. Finally, 36 ÷ 6 = 6.